/* WinSNMP.h */
/* Copyright (C) 1993-1999 Microsoft Corporation */
/* v1.0 - Sep 13, 1993 */
/* v1.1 - Jun 12, 1994 */
/* v2.0 - Nov  1, 1997 */
/*      - Nov 17, 1997: inc limits.h, tests for ULONG/UINT_MAX */
/*      - Mar 23, 1998: fixed typo in "lpClientData" */

/* Questions/comments to Bob Natale, bnatale@acecomm.com */

#ifndef _INC_WINSNMP     /* Include WinSNMP declarations */
#define  _INC_WINSNMP    /* Just once! */

#if _MSC_VER > 1000
#pragma once
#endif

#ifndef _INC_WINDOWS     /* Include Windows declarations, if not already done */
#include <windows.h>
#define _INC_WINDOWS     /* Just once! */
#endif                   /* _INC_WINDOWS */

#include <limits.h>

#ifdef __cplusplus
extern "C" {
#endif

/* WinSNMP API Type Definitions  */
typedef  HANDLE        HSNMP_SESSION,      FAR *LPHSNMP_SESSION;
typedef  HANDLE        HSNMP_ENTITY,       FAR *LPHSNMP_ENTITY;
typedef  HANDLE        HSNMP_CONTEXT,      FAR *LPHSNMP_CONTEXT;
typedef  HANDLE        HSNMP_PDU,          FAR *LPHSNMP_PDU;
typedef  HANDLE        HSNMP_VBL,          FAR *LPHSNMP_VBL;
typedef unsigned char    smiBYTE,          FAR *smiLPBYTE;
/* SNMP-related types */
#if ULONG_MAX == 4294967295U
typedef signed long      smiINT,           FAR *smiLPINT;
typedef smiINT           smiINT32,         FAR *smiLPINT32;
typedef unsigned long    smiUINT32,        FAR *smiLPUINT32;
#elif UINT_MAX == 4294967295U
typedef int              smiINT,           FAR *smiLPINT;
typedef smiINT           smiINT32,         FAR *smiLPINT32;
typedef unsigned int     smiUINT32,        FAR *smiLPUINT32;
#else
#error can not define smiINT and smiUINT
#endif
typedef struct {
     smiUINT32 len;
     smiLPBYTE ptr;}     smiOCTETS,        FAR *smiLPOCTETS;
typedef const smiOCTETS                    FAR *smiLPCOCTETS;
typedef smiOCTETS        smiBITS,          FAR *smiLPBITS;
typedef struct {
     smiUINT32   len;
     smiLPUINT32 ptr;}   smiOID,           FAR *smiLPOID;
typedef const smiOID                       FAR *smiLPCOID;
typedef smiOCTETS        smiIPADDR,        FAR *smiLPIPADDR;
typedef smiUINT32        smiCNTR32,        FAR *smiLPCNTR32;
typedef smiUINT32        smiGAUGE32,       FAR *smiLPGAUGE32;
typedef smiUINT32        smiTIMETICKS,     FAR *smiLPTIMETICKS;
typedef smiOCTETS        smiOPAQUE,        FAR *smiLPOPAQUE;
typedef smiOCTETS        smiNSAPADDR,      FAR *smiLPNSAPADDR;
typedef struct {
     smiUINT32 hipart;
     smiUINT32 lopart;}  smiCNTR64,        FAR *smiLPCNTR64;
/* ASN/BER Base Types */
/* (used in forming SYNTAXes and certain SNMP types/values) */
#define ASN_UNIVERSAL         (0x00)
#define ASN_APPLICATION       (0x40)
#define ASN_CONTEXT           (0x80)
#define ASN_PRIVATE           (0xC0)
#define ASN_PRIMITIVE         (0x00)
#define ASN_CONSTRUCTOR       (0x20)

/* SNMP ObjectSyntax Values */
#define SNMP_SYNTAX_SEQUENCE    (ASN_UNIVERSAL | ASN_CONSTRUCTOR | 0x10)
/* These values are used in the "syntax" member of the smiVALUE structure which follows */
#define SNMP_SYNTAX_INT         (ASN_UNIVERSAL | ASN_PRIMITIVE | 0x02)
#define SNMP_SYNTAX_BITS        (ASN_UNIVERSAL | ASN_PRIMITIVE | 0x03)
#define SNMP_SYNTAX_OCTETS      (ASN_UNIVERSAL | ASN_PRIMITIVE | 0x04)
#define SNMP_SYNTAX_NULL        (ASN_UNIVERSAL | ASN_PRIMITIVE | 0x05)
#define SNMP_SYNTAX_OID         (ASN_UNIVERSAL | ASN_PRIMITIVE | 0x06)
#define SNMP_SYNTAX_INT32       SNMP_SYNTAX_INT
#define SNMP_SYNTAX_IPADDR      (ASN_APPLICATION | ASN_PRIMITIVE | 0x00)
#define SNMP_SYNTAX_CNTR32      (ASN_APPLICATION | ASN_PRIMITIVE | 0x01)
#define SNMP_SYNTAX_GAUGE32     (ASN_APPLICATION | ASN_PRIMITIVE | 0x02)
#define SNMP_SYNTAX_TIMETICKS   (ASN_APPLICATION | ASN_PRIMITIVE | 0x03)
#define SNMP_SYNTAX_OPAQUE      (ASN_APPLICATION | ASN_PRIMITIVE | 0x04)
#define SNMP_SYNTAX_NSAPADDR    (ASN_APPLICATION | ASN_PRIMITIVE | 0x05)
#define SNMP_SYNTAX_CNTR64      (ASN_APPLICATION | ASN_PRIMITIVE | 0x06)
#define SNMP_SYNTAX_UINT32      (ASN_APPLICATION | ASN_PRIMITIVE | 0x07)
#define SNMP_SYNTAX_UNSIGNED32  SNMP_SYNTAX_GAUGE32
/* Exception conditions in response PDUs for SNMPv2 */
#define SNMP_SYNTAX_NOSUCHOBJECT   (ASN_CONTEXT | ASN_PRIMITIVE | 0x00)
#define SNMP_SYNTAX_NOSUCHINSTANCE (ASN_CONTEXT | ASN_PRIMITIVE | 0x01)
#define SNMP_SYNTAX_ENDOFMIBVIEW   (ASN_CONTEXT | ASN_PRIMITIVE | 0x02)

typedef struct {              /* smiVALUE portion of VarBind */
     smiUINT32 syntax;        /* Insert SNMP_SYNTAX_<type> */
     union {
     smiINT    sNumber;       /* SNMP_SYNTAX_INT
                                 SNMP_SYNTAX_INT32 */
     smiUINT32 uNumber;       /* SNMP_SYNTAX_UINT32
                                 SNMP_SYNTAX_CNTR32
                                 SNMP_SYNTAX_GAUGE32
                                 SNMP_SYNTAX_TIMETICKS */
     smiCNTR64 hNumber;       /* SNMP_SYNTAX_CNTR64 */
     smiOCTETS string;        /* SNMP_SYNTAX_OCTETS
                                 SNMP_SYNTAX_BITS
                                 SNMP_SYNTAX_OPAQUE
                                 SNMP_SYNTAX_IPADDR
                                 SNMP_SYNTAX_NSAPADDR */
     smiOID    oid;           /* SNMP_SYNTAX_OID */
     smiBYTE   empty;         /* SNMP_SYNTAX_NULL
                                 SNMP_SYNTAX_NOSUCHOBJECT
                                 SNMP_SYNTAX_NOSUCHINSTANCE
                                 SNMP_SYNTAX_ENDOFMIBVIEW */
         }     value;         /* union */
     }         smiVALUE,      FAR *smiLPVALUE;
typedef const  smiVALUE       FAR *smiLPCVALUE;

/* SNMP Limits   */
#define MAXOBJIDSIZE     128  /* Max number of components in an OID */
#define MAXOBJIDSTRSIZE  1408 /* Max len of decoded MAXOBJIDSIZE OID */

/* PDU Type Values */
#define SNMP_PDU_GET          (ASN_CONTEXT | ASN_CONSTRUCTOR | 0x0)
#define SNMP_PDU_GETNEXT      (ASN_CONTEXT | ASN_CONSTRUCTOR | 0x1)
#define SNMP_PDU_RESPONSE     (ASN_CONTEXT | ASN_CONSTRUCTOR | 0x2)
#define SNMP_PDU_SET          (ASN_CONTEXT | ASN_CONSTRUCTOR | 0x3)
/* SNMP_PDU_V1TRAP is obsolete in SNMPv2 */
#define SNMP_PDU_V1TRAP       (ASN_CONTEXT | ASN_CONSTRUCTOR | 0x4)
#define SNMP_PDU_GETBULK      (ASN_CONTEXT | ASN_CONSTRUCTOR | 0x5)
#define SNMP_PDU_INFORM       (ASN_CONTEXT | ASN_CONSTRUCTOR | 0x6)
#define SNMP_PDU_TRAP         (ASN_CONTEXT | ASN_CONSTRUCTOR | 0x7)

/*Constants for SnmpListenEx*/
#define SNMPLISTEN_USEENTITY_ADDR    0 /*Use entity address*/
#define SNMPLISTEN_ALL_ADDR          1 /*Use any address based on address family and port no*/

/* SNMPv1 Trap Values */
/* (These values might be superfluous wrt WinSNMP applications) */
#define SNMP_TRAP_COLDSTART             0
#define SNMP_TRAP_WARMSTART             1
#define SNMP_TRAP_LINKDOWN              2
#define SNMP_TRAP_LINKUP                3
#define SNMP_TRAP_AUTHFAIL              4
#define SNMP_TRAP_EGPNEIGHBORLOSS       5
#define SNMP_TRAP_ENTERPRISESPECIFIC    6

/* SNMP Error Codes Returned in Error_status Field of PDU */
/* (these are NOT WinSNMP API Error Codes */
/* Error Codes Common to SNMPv1 and SNMPv2 */
#define SNMP_ERROR_NOERROR              0
#define SNMP_ERROR_TOOBIG               1
#define SNMP_ERROR_NOSUCHNAME           2
#define SNMP_ERROR_BADVALUE             3
#define SNMP_ERROR_READONLY             4
#define SNMP_ERROR_GENERR               5
/* Error Codes Added for SNMPv2 */
#define SNMP_ERROR_NOACCESS             6
#define SNMP_ERROR_WRONGTYPE            7
#define SNMP_ERROR_WRONGLENGTH          8
#define SNMP_ERROR_WRONGENCODING        9
#define SNMP_ERROR_WRONGVALUE           10
#define SNMP_ERROR_NOCREATION           11
#define SNMP_ERROR_INCONSISTENTVALUE    12
#define SNMP_ERROR_RESOURCEUNAVAILABLE  13
#define SNMP_ERROR_COMMITFAILED         14
#define SNMP_ERROR_UNDOFAILED           15
#define SNMP_ERROR_AUTHORIZATIONERROR   16
#define SNMP_ERROR_NOTWRITABLE          17
#define SNMP_ERROR_INCONSISTENTNAME     18

/* WinSNMP API Values */
/* Values used to indicate entity/context translation modes */
#define SNMPAPI_TRANSLATED         0
#define SNMPAPI_UNTRANSLATED_V1    1
#define SNMPAPI_UNTRANSLATED_V2    2

/* Values used to indicate "SNMP level" supported by the implementation */
#define SNMPAPI_NO_SUPPORT         0
#define SNMPAPI_V1_SUPPORT         1
#define SNMPAPI_V2_SUPPORT         2
#define SNMPAPI_M2M_SUPPORT        3

/* Values used to indicate retransmit mode in the implementation */
#define SNMPAPI_OFF                0    /* Refuse support */
#define SNMPAPI_ON                 1    /* Request support */

/* WinSNMP API Function Return Codes */
typedef smiUINT32    SNMPAPI_STATUS;    /* Used for function ret values */
#define SNMPAPI_FAILURE            0    /* Generic error code */
#define SNMPAPI_SUCCESS            1    /* Generic success code */
/* WinSNMP API Error Codes (for SnmpGetLastError) */
/* (NOT SNMP Response-PDU error_status codes) */
#define SNMPAPI_ALLOC_ERROR        2    /* Error allocating memory */
#define SNMPAPI_CONTEXT_INVALID    3    /* Invalid context parameter */
#define SNMPAPI_CONTEXT_UNKNOWN    4    /* Unknown context parameter */
#define SNMPAPI_ENTITY_INVALID     5    /* Invalid entity parameter */
#define SNMPAPI_ENTITY_UNKNOWN     6    /* Unknown entity parameter */
#define SNMPAPI_INDEX_INVALID      7    /* Invalid VBL index parameter */
#define SNMPAPI_NOOP               8    /* No operation performed */
#define SNMPAPI_OID_INVALID        9    /* Invalid OID parameter */
#define SNMPAPI_OPERATION_INVALID  10   /* Invalid/unsupported operation */
#define SNMPAPI_OUTPUT_TRUNCATED   11   /* Insufficient output buf len */
#define SNMPAPI_PDU_INVALID        12   /* Invalid PDU parameter */
#define SNMPAPI_SESSION_INVALID    13   /* Invalid session parameter */
#define SNMPAPI_SYNTAX_INVALID     14   /* Invalid syntax in smiVALUE */
#define SNMPAPI_VBL_INVALID        15   /* Invalid VBL parameter */
#define SNMPAPI_MODE_INVALID       16   /* Invalid mode parameter */
#define SNMPAPI_SIZE_INVALID       17   /* Invalid size/length parameter */
#define SNMPAPI_NOT_INITIALIZED    18   /* SnmpStartup failed/not called */
#define SNMPAPI_MESSAGE_INVALID    19   /* Invalid SNMP message format */
#define SNMPAPI_HWND_INVALID       20   /* Invalid Window handle */
#define SNMPAPI_OTHER_ERROR        99   /* For internal/undefined errors */
/* Generic Transport Layer (TL) Errors */
#define SNMPAPI_TL_NOT_INITIALIZED 100  /* TL not initialized */
#define SNMPAPI_TL_NOT_SUPPORTED   101  /* TL does not support protocol */
#define SNMPAPI_TL_NOT_AVAILABLE   102  /* Network subsystem has failed */
#define SNMPAPI_TL_RESOURCE_ERROR  103  /* TL resource error */
#define SNMPAPI_TL_UNDELIVERABLE   104  /* Destination unreachable */
#define SNMPAPI_TL_SRC_INVALID     105  /* Source endpoint invalid */
#define SNMPAPI_TL_INVALID_PARAM   106  /* Input parameter invalid */
#define SNMPAPI_TL_IN_USE          107  /* Source endpoint in use */
#define SNMPAPI_TL_TIMEOUT         108  /* No response before timeout */
#define SNMPAPI_TL_PDU_TOO_BIG     109  /* PDU too big for send/receive */
#define SNMPAPI_TL_OTHER           199  /* Undefined TL error */

/* WinSNMP API Function Prototypes */

#ifndef IN
#define IN
#endif

#ifndef OUT
#define OUT
#endif

#define SNMPAPI_CALL     WINAPI         /* FAR PASCAL calling conventions */

/* v2.0: Structure for SnmpGetVendorInfo() output */
#define MAXVENDORINFO 32
typedef struct
    {
    char vendorName[MAXVENDORINFO*2];
    char vendorContact[MAXVENDORINFO*2];
    char vendorVersionId[MAXVENDORINFO];
    char vendorVersionDate[MAXVENDORINFO];
    smiUINT32 vendorEnterprise;
    } smiVENDORINFO, FAR *smiLPVENDORINFO;

/* v2.0: Callback format for SnmpCreateSession() fCallback parameter */
typedef SNMPAPI_STATUS (CALLBACK *SNMPAPI_CALLBACK)
                        (IN HSNMP_SESSION hSession,
                         IN HWND hWnd,
                         IN UINT wMsg,
                         IN WPARAM wParam,
                         IN LPARAM lParam,
                         IN LPVOID lpClientData);

/* Local Database Functions */
SNMPAPI_STATUS SNMPAPI_CALL   SnmpGetTranslateMode
                              (OUT smiLPUINT32 nTranslateMode);

SNMPAPI_STATUS SNMPAPI_CALL   SnmpSetTranslateMode
                              (IN smiUINT32 nTranslateMode);

SNMPAPI_STATUS SNMPAPI_CALL   SnmpGetRetransmitMode
                              (OUT smiLPUINT32 nRetransmitMode);

SNMPAPI_STATUS SNMPAPI_CALL   SnmpSetRetransmitMode
                              (IN smiUINT32 nRetransmitMode);

SNMPAPI_STATUS SNMPAPI_CALL   SnmpGetTimeout
                              (IN HSNMP_ENTITY hEntity,
                              OUT smiLPTIMETICKS nPolicyTimeout,
                              OUT smiLPTIMETICKS nActualTimeout);

SNMPAPI_STATUS SNMPAPI_CALL   SnmpSetTimeout
                              (IN HSNMP_ENTITY hEntity,
                              IN smiTIMETICKS nPolicyTimeout);

SNMPAPI_STATUS SNMPAPI_CALL   SnmpGetRetry
                              (IN HSNMP_ENTITY hEntity,
                              OUT smiLPUINT32 nPolicyRetry,
                              OUT smiLPUINT32 nActualRetry);

SNMPAPI_STATUS SNMPAPI_CALL   SnmpSetRetry
                              (IN HSNMP_ENTITY hEntity,
                              IN smiUINT32 nPolicyRetry);

/* Following Local Database Functions added in v2.0 */
SNMPAPI_STATUS SNMPAPI_CALL   SnmpGetVendorInfo
                              (OUT smiLPVENDORINFO vendorInfo);

/* Communications Functions */
SNMPAPI_STATUS SNMPAPI_CALL   SnmpStartup
                              (OUT smiLPUINT32 nMajorVersion,
                              OUT smiLPUINT32 nMinorVersion,
                              OUT smiLPUINT32 nLevel,
                              OUT smiLPUINT32 nTranslateMode,
                              OUT smiLPUINT32 nRetransmitMode);

SNMPAPI_STATUS SNMPAPI_CALL   SnmpCleanup
                              (void);

HSNMP_SESSION  SNMPAPI_CALL   SnmpOpen
                              (IN HWND hWnd,
                              IN UINT wMsg);

SNMPAPI_STATUS SNMPAPI_CALL   SnmpClose
                              (IN HSNMP_SESSION session);

SNMPAPI_STATUS SNMPAPI_CALL   SnmpSendMsg
                              (IN HSNMP_SESSION session,
                              IN HSNMP_ENTITY srcEntity,
                              IN HSNMP_ENTITY dstEntity,
                              IN HSNMP_CONTEXT context,
                              IN HSNMP_PDU PDU);

SNMPAPI_STATUS SNMPAPI_CALL   SnmpRecvMsg
                              (IN HSNMP_SESSION session,
                              OUT LPHSNMP_ENTITY srcEntity,
                              OUT LPHSNMP_ENTITY dstEntity,
                              OUT LPHSNMP_CONTEXT  context,
                              OUT LPHSNMP_PDU PDU);

SNMPAPI_STATUS SNMPAPI_CALL   SnmpRegister
                              (IN HSNMP_SESSION session,
                              IN HSNMP_ENTITY srcEntity,
                              IN HSNMP_ENTITY dstEntity,
                              IN HSNMP_CONTEXT context,
                              IN smiLPCOID notification,
                              IN smiUINT32 state);

/* Following Communications Functions added in v2.0 */
HSNMP_SESSION  SNMPAPI_CALL   SnmpCreateSession
                              (IN HWND hWnd,
                              IN UINT wMsg,
                              IN SNMPAPI_CALLBACK fCallBack,
                              IN LPVOID lpClientData);

SNMPAPI_STATUS SNMPAPI_CALL   SnmpListen
                              (IN HSNMP_ENTITY hEntity,
                              IN SNMPAPI_STATUS lStatus);

SNMPAPI_STATUS SNMPAPI_CALL   SnmpListenEx
                              (IN HSNMP_ENTITY hEntity,
                              IN SNMPAPI_STATUS lStatus,
                              IN smiUINT32 nUseEntityAddr);

SNMPAPI_STATUS SNMPAPI_CALL   SnmpCancelMsg
                              (IN HSNMP_SESSION session,
                              IN smiINT32 reqId);

/* Extensions to Communications Functions */
SNMPAPI_STATUS SNMPAPI_CALL SnmpStartupEx 
                            (OUT smiLPUINT32 nMajorVersion,
                             OUT smiLPUINT32 nMinorVersion,
                             OUT smiLPUINT32 nLevel,
                             OUT smiLPUINT32 nTranslateMode,
                             OUT smiLPUINT32 nRetransmitMode);
typedef SNMPAPI_STATUS (SNMPAPI_CALL * PFNSNMPSTARTUPEX)(  smiLPUINT32,
                                                        smiLPUINT32,
                                                        smiLPUINT32,
                                                        smiLPUINT32,
                                                        smiLPUINT32);
SNMPAPI_STATUS SNMPAPI_CALL SnmpCleanupEx 
                            (void);
typedef SNMPAPI_STATUS (SNMPAPI_CALL * PFNSNMPCLEANUPEX)(void);

/* Entity/Context Functions */
HSNMP_ENTITY   SNMPAPI_CALL   SnmpStrToEntity
                              (IN HSNMP_SESSION session,
                              IN LPCSTR string);

SNMPAPI_STATUS SNMPAPI_CALL   SnmpEntityToStr
                              (__in HSNMP_ENTITY entity,
                              __in smiUINT32 size,
                              __out_ecount(size) LPSTR string);

SNMPAPI_STATUS SNMPAPI_CALL   SnmpFreeEntity
                              (IN HSNMP_ENTITY entity);

HSNMP_CONTEXT  SNMPAPI_CALL   SnmpStrToContext
                              (IN HSNMP_SESSION session,
                              IN smiLPCOCTETS string);

SNMPAPI_STATUS SNMPAPI_CALL   SnmpContextToStr
                              (IN HSNMP_CONTEXT context,
                              OUT smiLPOCTETS string);

SNMPAPI_STATUS SNMPAPI_CALL   SnmpFreeContext
                              (IN HSNMP_CONTEXT context);

/* Following Entity/Context Functions added in v2.0 */
SNMPAPI_STATUS SNMPAPI_CALL   SnmpSetPort
                              (IN HSNMP_ENTITY hEntity,
                              IN UINT nPort);

/* PDU Functions */
HSNMP_PDU      SNMPAPI_CALL   SnmpCreatePdu
                              (IN HSNMP_SESSION session,
                              IN smiINT PDU_type,
                              IN smiINT32 request_id,
                              IN smiINT error_status,
                              IN smiINT error_index,
                              IN HSNMP_VBL varbindlist);

SNMPAPI_STATUS SNMPAPI_CALL   SnmpGetPduData
                              (IN HSNMP_PDU PDU,
                              OUT smiLPINT PDU_type,
                              OUT smiLPINT32 request_id,
                              OUT smiLPINT error_status,
                              OUT smiLPINT error_index,
                              OUT LPHSNMP_VBL varbindlist);

SNMPAPI_STATUS SNMPAPI_CALL   SnmpSetPduData
                              (IN HSNMP_PDU PDU,
                              IN const smiINT FAR *PDU_type,
                              IN const smiINT32 FAR *request_id,
                              IN const smiINT FAR *non_repeaters,
                              IN const smiINT FAR *max_repetitions,
                              IN const HSNMP_VBL FAR *varbindlist);

HSNMP_PDU      SNMPAPI_CALL   SnmpDuplicatePdu
                              (IN HSNMP_SESSION session,
                              IN HSNMP_PDU PDU);

SNMPAPI_STATUS SNMPAPI_CALL   SnmpFreePdu
                              (IN HSNMP_PDU PDU);

/* Variable-Binding Functions */
HSNMP_VBL      SNMPAPI_CALL   SnmpCreateVbl
                              (IN HSNMP_SESSION session,
                              IN smiLPCOID name,
                              IN smiLPCVALUE value);

HSNMP_VBL      SNMPAPI_CALL   SnmpDuplicateVbl
                              (IN HSNMP_SESSION session,
                              IN HSNMP_VBL vbl);

SNMPAPI_STATUS SNMPAPI_CALL   SnmpFreeVbl
                              (IN HSNMP_VBL vbl);

SNMPAPI_STATUS SNMPAPI_CALL   SnmpCountVbl
                              (IN HSNMP_VBL vbl);

SNMPAPI_STATUS SNMPAPI_CALL   SnmpGetVb
                              (IN HSNMP_VBL vbl,
                              IN smiUINT32 index,
                              OUT smiLPOID name,
                              OUT smiLPVALUE value);

SNMPAPI_STATUS SNMPAPI_CALL   SnmpSetVb
                              (IN HSNMP_VBL vbl,
                              IN smiUINT32 index,
                              IN smiLPCOID name,
                              IN smiLPCVALUE value);

SNMPAPI_STATUS SNMPAPI_CALL   SnmpDeleteVb
                              (IN HSNMP_VBL vbl,
                              IN smiUINT32 index);

/* Utility Functions */
SNMPAPI_STATUS SNMPAPI_CALL   SnmpGetLastError
                              (IN HSNMP_SESSION session);

SNMPAPI_STATUS SNMPAPI_CALL   SnmpStrToOid
                              (IN LPCSTR string,
                              OUT smiLPOID dstOID);

SNMPAPI_STATUS SNMPAPI_CALL   SnmpOidToStr
                              (__in smiLPCOID srcOID,
                              __in smiUINT32 size,
                              __out_ecount(size) LPSTR string);

SNMPAPI_STATUS SNMPAPI_CALL   SnmpOidCopy
                              (IN smiLPCOID srcOID,
                              OUT smiLPOID dstOID);

SNMPAPI_STATUS SNMPAPI_CALL   SnmpOidCompare
                              (IN smiLPCOID xOID,
                              IN smiLPCOID yOID,
                              IN smiUINT32 maxlen,
                              OUT smiLPINT result);

SNMPAPI_STATUS SNMPAPI_CALL   SnmpEncodeMsg
                              (IN HSNMP_SESSION session,
                              IN HSNMP_ENTITY srcEntity,
                              IN HSNMP_ENTITY dstEntity,
                              IN HSNMP_CONTEXT context,
                              IN HSNMP_PDU pdu,
                              OUT smiLPOCTETS msgBufDesc);

SNMPAPI_STATUS SNMPAPI_CALL   SnmpDecodeMsg
                              (IN HSNMP_SESSION session,
                              OUT LPHSNMP_ENTITY srcEntity,
                              OUT LPHSNMP_ENTITY dstEntity,
                              OUT LPHSNMP_CONTEXT context,
                              OUT LPHSNMP_PDU pdu,
                              IN smiLPCOCTETS msgBufDesc);

SNMPAPI_STATUS SNMPAPI_CALL   SnmpFreeDescriptor
                              (IN smiUINT32 syntax,
                              IN smiLPOPAQUE descriptor);

#ifdef __cplusplus
}
#endif

#endif         /* _INC_WINSNMP */


